@misc{indiciaef548d6f285c7,
  title = {Diabetic retinopathy.},
  author = {B F Clarke and J F Cullen and L J Duncan},
  year = {1970},
  doi = {10.1016/s0140-6736(70)92218-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4098683/},
  note = {Source identifier: 4098683}
}